31.76% is the change from 381 to 502
Calculation steps:
[( 502 - 381 ) ÷ 381] x 100 = 31.76%
Formula
Percentage change = [(502 - 381) / 381] x 100
Subtract the new number by the original number
502 - 381 = 121
121 ÷ 381 = 0.31758530183727035
0.31758530183727035 x 100 = 31.76%